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How to Create a Symmetric Array in Python: A Fun Logic Exercise

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 Here's a Python program that says to write a Symmetric array transformation. A top interview question. Symmetric Array Transformation Problem: Write a Python function that transforms a given array into a symmetric array by mirroring it around its center. For example: Input: [1, 2, 3] Output: [1, 2, 3, 2, 1] Hints: Use slicing for the reverse part. Concatenate the original array with its mirrored part. Example def symmetric_array(arr):     """     Transforms the input array into a symmetric array by mirroring it around its center.     Parameters:     arr (list): The input array.     Returns:     list: The symmetric array.     """     # Mirror the array by concatenating the original with its reverse (excluding the last element to avoid duplication)     return arr + arr[-2::-1] # Example usage input_array = [1, 2, 3] symmetric_result = symmetric_array(input_array) print("Input Array:", input_arr...
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Python Function: How to Write Error Logic

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Here's an example python user-defined function. Here, you'll know how to write error conditions. The best examples is if and else. I have shared the logic here for your reference.

Python is one of the top programming languages. Python does support Functions. While writing functions you also need to consider some errors. Those are called exceptions. I am explaining how to give error logic in a function of Python.


Python function error logic

Exception-handling means to have logic for error scenarios. Writing exception I will show in a simple Function.

In this post I will give you syntax for writing function and exception. 

Here is my simple Function that multiplies two numbers.

Logic to write Function in Python to Multiply Two Numbers 

def product (num1,num2):
prod=num1*num2
print( ' The product of the numbers is \t:
'+str(prod)

Parameters used the Python Function
  • The 'def' means you are defining function with a name of 'product'.
  • In the parameters of 'product', you can see TWO variables. Those are to take input from the user for multiplication.
  • prod=num1*num2. That means product of two numbers assigning to 'prod' variable. 
  • Python is dynamic language and you no need to define variables explicitly.
  • Print command displays your result to the terminal or console. 
  • The '\t' tells 'space' between comment and the result.
How Python Function works

How to write error logic in Python Function

In the below code when you supply other than numeric, it sends an error message.

def product(num1,num2):
prod=num1*num2
If num1 or num2 in [ 0,1,2,3,4,5,6,7,8,9]
     print( prints value)
elif
    print( error)

Now, you are good to write functions and exceptions.

References

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